Lesson 51: Who are you waiting for?

In this lesson, you'll learn the following phrases: Who are you waiting for? / Are you waiting for someone? / I'm waiting for a friend. / I'm sorry I'm late. How long have you been waiting? / I've been waiting here for fifteen minutes. / Are you leaving now? / I'll wait five more minutes, then I'll leave. / Is there someone waiting for you? / I have to go. My children are waiting.